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<br /> <br />SLOPE STABILITY <br />INTERIM INSPECTION REPORT <br />AP.EA Wolf Creek Drainage Fill <br />TIME 1:30 p.m. <br />DATE 8/5/87 <br />WEATHER P.C., 75°-85° <br />1. Debris, organic matter, coal, etc., present in fill None Visible. <br />2. General gradation and characteristics of material The underdrain was extended <br />to "daylight" in the west pA2 road ditch. The material appeared to be well- <br />graded, blocky material. <br />3. Presence of water, surface and ground No signs of water seepage at the end <br />of the underdrain or in the Lower half of the existing pit. <br />4. Condition of underdrain (approx. current width, depth, and length), material <br />gradation and characteristic, compaction, presence. of water Underdrain con- <br />~truction is completed. Once the upper part of the ItA2 Coal Haulage Ramp <br />is no longer required, backfilling and grading can proceed above the under- <br />drain. No sign of water flowing. <br />5. General m aterial movement No unexpected movement is evident. <br />6. <br />7. <br />8. <br />9. <br />Proximity and treatment of seep points None observed. <br />Condition of slope fill surface (grading, cracks or sloughing, erosion, <br />revegetation) No apparent change from the prior inspection. <br />Recommendation Continued observation and inspection of the fill slope <br />until rough grading and revegetation are concluded. <br />Accountability <br />I certify the E <br />the best of_~13 <br />observations and comments to be true and accurate to <br />ge. <br />AUG 1 1 1987 <br />Au ust 11 1987 <br />ate <br />